403312957 has 2 divisors, whose sum is σ = 403312958. Its totient is φ = 403312956.

The previous prime is 403312937. The next prime is 403312963. The reversal of 403312957 is 759213304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346927876 + 56385081 = 18626^2 + 7509^2 .

It is a cyclic number.

It is not a de Polignac number, because 403312957 - 2¹¹ = 403310909 is a prime.

It is a super-2 number, since 2×403312957² = 325322682568167698, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403312937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201656478 + 201656479.

It is an arithmetic number, because the mean of its divisors is an integer number (201656479).

Almost surely, 2^403312957 is an apocalyptic number.

It is an amenable number.

403312957 is a deficient number, since it is larger than the sum of its proper divisors (1).

403312957 is an equidigital number, since it uses as much as digits as its factorization.

403312957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 403312957 is about 20082.6531364758. The cubic root of 403312957 is about 738.8348824776.

The spelling of 403312957 in words is "four hundred three million, three hundred twelve thousand, nine hundred fifty-seven".